Update build.yml

Update to the 5.5 release build.

Author: compnerd

.github/workflows/build.yml

@@ -18,8 +18,8 @@ jobs:
           - branch: swift-5.4.3-release
             tag: 5.4.3-RELEASE
 
-          - branch: swift-5.5-branch
-            tag: 5.5-DEVELOPMENT-SNAPSHOT-2021-07-03-a
+          - branch: swift-5.5-release
+            tag: 5.5-RELEASE
 
           - branch: development
             tag: DEVELOPMENT-SNAPSHOT-2021-06-12-a